Westland Hydrangea Colourant – 500g

Westland Hydrangea Colourant can obtain the best results with plants growing in acid soils. Use ericaceous compost where the soil is naturally alkaline and alternatively, double the application rate. This colourant easily absorbs nutrients, as well as nitrogen for greener leaves. Westland Hydrangea colorant is a Salt which changes the colour of pale pink Hydrangea varieties to blue and darker pink varieties to mauve blue.

• A combination of iron and aluminium salts.
• Acidifies the soil to produce blue flowers.
• Potassium to boost flowering.
• Changes pale pink hydrangeas to blue.
• Changes dark pink hydrangeas to mauve blue.
• Will enhance the colour of any line hating plant.